... 观察者模式 The Observer Pattern 装饰者模式 The Decorator Pattern 工厂方法模式 The Factory Method Pattern ...
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THE DECORATOR DESIGN PATTERN 装饰设计模式
Figure 4 shows a class diagram for the decorator pattern.
图4显示了装饰器模式的类图。
The decorator pattern is used by the DelegatingMessageHandler class shown in Listing 7.
清单7中的DelegatingMessage handler类使用了decorator模式。
An advantage of the decorator pattern is that you can easily tack on more than one decorator to the base at a time.
装饰器模式的优点是可以轻松地同时跟踪库的多个装饰器。
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